Products and Services Revenues (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segment category	Jun. 30, 2013
Products and Services Revenues
Number of categories of products and services (categories)			3
Total operating revenues	$ 2,206	$ 2,199	$ 4,417	$ 4,358
USF surcharges and transaction taxes included in operating revenues and expenses	39	38	78	78
Number of reportable segments (segments)			1
Strategic services
Products and Services Revenues
Total operating revenues	860	831	1,716	1,660
Legacy services
Products and Services Revenues
Total operating revenues	757	806	1,524	1,630
Affiliates and other services
Products and Services Revenues
Total operating revenues	$ 589	$ 562	$ 1,177	$ 1,068

Represents the number of categories in which the entity categorizes the products and services.

No definition available.

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- Definition

Represents the taxes and surcharges on revenues from universal service funds (USF), which are included in operating revenues and expenses.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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